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DBPL
1995
Springer
106views Database» more  DBPL 1995»
15 years 8 months ago
On Impossibility of Decremental Recomputation of Recursive Queries in Relational Calculus and SQL
We study the problem of maintaining recursively-de ned views, such as the transitive closure of a relation, in traditional relational languages that do not have recursion mechanis...
Guozhu Dong, Leonid Libkin, Limsoon Wong
WWW
2008
ACM
15 years 4 months ago
Discovering co-located queries in geographic search logs
A geographic search request contains a query consisting of one or more keywords, and a search-location that the user searches for. In this paper, we study the problem of discoveri...
Xiangye Xiao, Longhao Wang, Xing Xie, Qiong Luo
EDBT
2011
ACM
199views Database» more  EDBT 2011»
14 years 8 months ago
Predicting completion times of batch query workloads using interaction-aware models and simulation
A question that database administrators (DBAs) routinely need to answer is how long a batch query workload will take to complete. This question arises, for example, while planning...
Mumtaz Ahmad, Songyun Duan, Ashraf Aboulnaga, Shiv...
CVPR
2008
IEEE
16 years 6 months ago
Utilizing semantic word similarity measures for video retrieval
This is a high level computer vision paper, which employs concepts from Natural Language Understanding in solving the video retrieval problem. Our main contribution is the utiliza...
Yusuf Aytar, Mubarak Shah, Jiebo Luo
CIVR
2009
Springer
147views Image Analysis» more  CIVR 2009»
15 years 11 months ago
Integrating visual and semantic contexts for topic network generation and word sense disambiguation
To support more effective searches in large-scale weaklytagged image collections, we have developed a novel algorithm to integrate both the visual similarity contexts between the...
Jianping Fan, Hangzai Luo, Yi Shen, Chunlei Yang